The term computer network itself can also be interpreted as a collection of a number of communication terminals consisting of two or more computers that are connected. The purpose of building a computer network is that the information / data transmitter (transmitter) can get to the receiver (receiver) with precise and accurate.
Computer network allows users to communicate with each other easily. In addition, the role of computer networks is needed to integrate data between client computers so that obtained a relevant data.
Benefits of Computer Networking
many benefits of computer network, among others:
With a computer network, we can access the files we have at once the files of others who have been disseminated through a network, such as the Internet network.
Through computer network, we can make the process of sending data quickly and efficiently.
Computer networks help people connect with people from different countries easily.
In addition, users can also send text, images, audio, or video in real time with the help of computer networks.
We can access news or information very easily through the internet because the Internet is one example of computer networks.
Suppose that in an office requires a printer, we do not need to buy a number of printers with computers contained in the office. We just buy one printer only for use by all office employees with the help of computer network.
Computer Networks
Generally, computer networks are grouped into 5 categories, based on geographic reach, information / data source distribution, data transmission media, the role and relationship of each computer in processing data, and based on the type of topology used. Here's the full description:
A. Based on Geographic Reach
1. LAN
Local Area Network or often abbreviated with the LAN is a network that only covers a small area, such as cafe, office, or school. Generally wide area LAN network not far from 1 sq. Km. Usually LAN networks use IEEE 802.3 Ethernet technology that has data transfer rates of about 10, 100, even 1000 MB / s. In addition to using Ethernet technology, not a few also use wireless technology such as Wi-fi for LAN networks.
2. MAN
Metropolitan Area Network or MAN is a network that includes a city with high data transfer rates. In a way, the network MAN is a combination of several LAN networks. Jangakauan of MAN network ranges from 10 to 50 km. MAN only has one or two wires and is not equipped with a switching element that works to make the design more simple.
3. WAN
Wide Area Network or WAN is a network that reaches a wide geographical area, such as a country and even a continent. WANs are generally used to connect two or more local networks so that users can communicate with other users even in different locations.
B. Based on Information / Data Source Distribution
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